JPH0812537B2 - 暗号化装置 - Google Patents

暗号化装置

Info

Publication number
JPH0812537B2
JPH0812537B2 JP5050276A JP5027693A JPH0812537B2 JP H0812537 B2 JPH0812537 B2 JP H0812537B2 JP 5050276 A JP5050276 A JP 5050276A JP 5027693 A JP5027693 A JP 5027693A JP H0812537 B2 JPH0812537 B2 JP H0812537B2
Authority
JP
Japan
Prior art keywords
intermediate key
encryption
update information
conversion
function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP5050276A
Other languages
English (en)
Japanese (ja)
Other versions
JPH06266284A (ja
Inventor
浩 宮野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP5050276A priority Critical patent/JPH0812537B2/ja
Priority to CA002118826A priority patent/CA2118826C/fr
Priority to EP94103809A priority patent/EP0618701B1/fr
Priority to DE69429126T priority patent/DE69429126T2/de
Priority to AU57764/94A priority patent/AU674197B2/en
Priority to US08/208,589 priority patent/US5442705A/en
Publication of JPH06266284A publication Critical patent/JPH06266284A/ja
Publication of JPH0812537B2 publication Critical patent/JPH0812537B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
JP5050276A 1993-03-11 1993-03-11 暗号化装置 Expired - Fee Related JPH0812537B2 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP5050276A JPH0812537B2 (ja) 1993-03-11 1993-03-11 暗号化装置
CA002118826A CA2118826C (fr) 1993-03-11 1994-03-11 Dispositif pour crypter des blocs de bits tout en renouvelant une cle a chaque iteration
EP94103809A EP0618701B1 (fr) 1993-03-11 1994-03-11 Dispositif hardware de chiffrement des blocs de bit pendant renouvellement de clé à chaque itération
DE69429126T DE69429126T2 (de) 1993-03-11 1994-03-11 Hardware-Anordnung zur Verschlüsselung von Bitblocks mit Erneuerung des Schlüssels bei jeder Iteration
AU57764/94A AU674197B2 (en) 1993-03-11 1994-03-11 Hardware arrangement for enciphering bit blocks while renewing a key at each iteration
US08/208,589 US5442705A (en) 1993-03-11 1994-03-11 Hardware arrangement for enciphering bit blocks while renewing a key at each iteration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5050276A JPH0812537B2 (ja) 1993-03-11 1993-03-11 暗号化装置

Publications (2)

Publication Number Publication Date
JPH06266284A JPH06266284A (ja) 1994-09-22
JPH0812537B2 true JPH0812537B2 (ja) 1996-02-07

Family

ID=12854421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5050276A Expired - Fee Related JPH0812537B2 (ja) 1993-03-11 1993-03-11 暗号化装置

Country Status (6)

Country Link
US (1) US5442705A (fr)
EP (1) EP0618701B1 (fr)
JP (1) JPH0812537B2 (fr)
AU (1) AU674197B2 (fr)
CA (1) CA2118826C (fr)
DE (1) DE69429126T2 (fr)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9400428A (nl) * 1994-03-18 1995-11-01 Nederland Ptt Inrichting voor het cryptografisch bewerken van datapakketten, alsmede werkwijze voor het genereren van cryptografische bewerkingsdata.
JPH08179690A (ja) * 1994-12-22 1996-07-12 Nec Corp プロダクト暗号装置
WO1997005720A2 (fr) * 1995-07-27 1997-02-13 Nextlevel Systems, Inc. Systeme cryptographique a facteur d'inviolabilite non apparent
SE506619C2 (sv) * 1995-09-27 1998-01-19 Ericsson Telefon Ab L M Metod för kryptering av information
US5768390A (en) * 1995-10-25 1998-06-16 International Business Machines Corporation Cryptographic system with masking
US6075858A (en) * 1995-10-27 2000-06-13 Scm Microsystems (U.S.) Inc. Encryption key system and method
CA2164768C (fr) * 1995-12-08 2001-01-23 Carlisle Michael Adams Construction de chiffres symetriques selon la methode cast
AU716807B2 (en) * 1996-02-28 2000-03-09 Hitachi Limited Method and apparatus for encrypting data
JP3746098B2 (ja) * 1996-02-28 2006-02-15 株式会社日立製作所 データの暗号化装置
CA2173688C (fr) * 1996-04-09 2000-01-18 Hideo Shimizu Appareil et methode de chiffrement pouvant controler le processus de chiffrement en conformite avec un etat interne
US5835599A (en) * 1996-04-15 1998-11-10 Vlsi Technology, Inc. Muti-cycle non-parallel data encryption engine
US5809148A (en) * 1996-05-17 1998-09-15 Motorola, Inc. Decryption of retransmitted data in an encrypted communication system
US5745577A (en) * 1996-07-25 1998-04-28 Northern Telecom Limited Symmetric cryptographic system for data encryption
US5933501A (en) 1996-08-01 1999-08-03 Harris Corporation `Virtual` encryption scheme combining different encryption operators into compound-encryption mechanism
US6587563B1 (en) * 1997-02-15 2003-07-01 Apple Computer, Inc. Cryptographic system using chaotic dynamics
US6459792B2 (en) * 1997-04-23 2002-10-01 Matsushita Electric Industrial Co., Ltd. Block cipher using key data merged with an intermediate block generated from a previous block
JP3351305B2 (ja) * 1997-08-07 2002-11-25 日本電気株式会社 暗号装置及び暗号装置を実現するプログラムを記録したコンピューターが読みとり可能な記録媒体
US7142673B1 (en) * 1997-11-28 2006-11-28 Otkrytoye aktsionernoye obschestvo “Moskovskaya Gorodskaya Telefonnaya Set” Method for the cryptographic conversion of L-bit input blocks of digital data into L-bit output blocks
US6259789B1 (en) 1997-12-12 2001-07-10 Safecourier Software, Inc. Computer implemented secret object key block cipher encryption and digital signature device and method
US6215876B1 (en) 1997-12-31 2001-04-10 Transcrypt International, Inc. Apparatus for and method of detecting initialization vector errors and maintaining cryptographic synchronization without substantial increase in overhead
US6249582B1 (en) 1997-12-31 2001-06-19 Transcrypt International, Inc. Apparatus for and method of overhead reduction in a block cipher
US6570989B1 (en) * 1998-04-27 2003-05-27 Matsushita Electric Industrial Co., Ltd. Cryptographic processing apparatus, cryptographic processing method, and storage medium storing cryptographic processing program for realizing high-speed cryptographic processing without impairing security
DE19924986B4 (de) * 1998-05-29 2006-03-23 Hitachi, Ltd. Verschlüsselungs-Konversionsvorrichtung, Entschlüsselungs-Konversionsvorrichtung, kryptografisches Kommunikationssystem und elektronische Gebühren-Sammelvorrichtung
ATE336122T1 (de) * 1998-12-30 2006-09-15 Nokia Corp Verfahren und vorrichtung zur kryptographischen datenverarbeitung
US7095540B1 (en) * 1999-01-29 2006-08-22 The University Of Connecticut Optical security system using fourier plane encoding
KR100320182B1 (ko) * 1999-02-09 2002-01-10 구자홍 디지탈 데이터 파일 암호화 방법
TW556111B (en) * 1999-08-31 2003-10-01 Toshiba Corp Extended key generator, encryption/decryption unit, extended key generation method, and storage medium
US6891951B2 (en) * 2000-01-21 2005-05-10 Victor Company Of Japan, Ltd. Cryptosystem-related method and apparatus
AU2001286383A1 (en) * 2000-05-05 2001-11-26 Ruby B. Lee A method and system for performing permutations with bit permutation instructions
US7170997B2 (en) 2000-12-07 2007-01-30 Cryptico A/S Method of generating pseudo-random numbers in an electronic device, and a method of encrypting and decrypting electronic data
US7076059B1 (en) * 2002-01-17 2006-07-11 Cavium Networks Method and apparatus to implement the data encryption standard algorithm
FR2838892A1 (fr) * 2002-04-23 2003-10-24 Scm Microsystems Gmbh Procede et dispositif de chiffrement de donnees numeriques
US20040086117A1 (en) * 2002-06-06 2004-05-06 Petersen Mette Vesterager Methods for improving unpredictability of output of pseudo-random number generators
WO2004084484A1 (fr) * 2003-03-17 2004-09-30 Alexander Andreevich Moldovyan Procede de conversion cryptographique de donnees numeriques
JP4687775B2 (ja) * 2008-11-20 2011-05-25 ソニー株式会社 暗号処理装置
US10262164B2 (en) 2016-01-15 2019-04-16 Blockchain Asics Llc Cryptographic ASIC including circuitry-encoded transformation function
US10372943B1 (en) 2018-03-20 2019-08-06 Blockchain Asics Llc Cryptographic ASIC with combined transformation and one-way functions
US10404454B1 (en) 2018-04-25 2019-09-03 Blockchain Asics Llc Cryptographic ASIC for derivative key hierarchy
US11017128B2 (en) 2018-05-22 2021-05-25 Seagate Technology Llc Data security using bit transposition during memory accesses
US11347860B2 (en) 2019-06-28 2022-05-31 Seagate Technology Llc Randomizing firmware loaded to a processor memory

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962539A (en) * 1975-02-24 1976-06-08 International Business Machines Corporation Product block cipher system for data security
US3958081A (en) * 1975-02-24 1976-05-18 International Business Machines Corporation Block cipher system for data security
US4074066A (en) * 1976-04-26 1978-02-14 International Business Machines Corporation Message verification and transmission error detection by block chaining
US4316055A (en) * 1976-12-30 1982-02-16 International Business Machines Corporation Stream/block cipher crytographic system
US4850019A (en) * 1985-11-08 1989-07-18 Nippon Telegraph And Telephone Corporation Data randomization equipment
JPS6347835A (ja) * 1986-08-18 1988-02-29 Agency Of Ind Science & Technol パイプライン計算機
GB2204465B (en) * 1987-05-01 1991-06-19 Philips Electronic Associated A method of and an arrangement for digital signal encryption
US5003597A (en) * 1989-12-21 1991-03-26 Xerox Corporation Method and apparatus for data encryption
JPH07104845B2 (ja) * 1990-09-11 1995-11-13 松下電送株式会社 並列処理装置
JP3053106B2 (ja) * 1990-11-02 2000-06-19 株式会社日立製作所 暗号化処理装置、及び復号化処理装置
US5317638A (en) * 1992-07-17 1994-05-31 International Business Machines Corporation Performance enhancement for ANSI X3.92 data encryption algorithm standard

Also Published As

Publication number Publication date
DE69429126T2 (de) 2002-07-11
EP0618701A2 (fr) 1994-10-05
EP0618701A3 (fr) 1995-04-12
AU5776494A (en) 1994-09-15
AU674197B2 (en) 1996-12-12
DE69429126D1 (de) 2002-01-03
US5442705A (en) 1995-08-15
JPH06266284A (ja) 1994-09-22
CA2118826A1 (fr) 1994-09-12
CA2118826C (fr) 1996-08-06
EP0618701B1 (fr) 2001-11-21

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